Usenet.nl / the company has charged $99 from my credit card but I did not subscribed for yearly package. I just subscribed for trial package.

They have stolen my money. I did not subscribed as regular or premium member. I don't even know my user iD or password. But they kept charging, first $1, I thought that's ok but yesterday they charged $99. I did not availed their service or ordered any product. And I did not make any contract. I did not gave them the authorization to charge my card. Please consider my issue.